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Downy Mildew in Kohlrabi

How to identify and treat downy mildew in Kohlrabi.

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Kohlrabi care requirements

water
Keep soil consistently moist with 1–1.5 inches per week; irregular watering causes tough, woody texture
soil
Well-draining, fertile loam with pH 6.0–7.5; add compost before planting
light
Full sun, 6–8 hours daily; light afternoon shade in hot climates beneficial
symptoms

Symptoms to look for in Kohlrabi

  • fiber_manual_recordYellow patches on upper leaf surface
  • fiber_manual_recordGrey-purple fuzzy growth on undersides
  • fiber_manual_recordWilting
help

Common causes in Kohlrabi

Caused by Peronospora and Pseudoperonospora species. Spreads in cool, humid conditions.

healing

How to treat downy mildew in Kohlrabi

Remove affected material. Apply copper fungicide or phosphonate.

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Preventing downy mildew in Kohlrabi

Avoid overcrowding. Water in morning. Choose resistant varieties.